Gary Goodspeed is the son of John Goodspeed, an Infinity Guard captain who died on a mission to close a breach to Final Space when Gary was a child. Shortly after the death of his father, Gary was abandoned by his mother, Sheryl Goodspeed, and forced into a life of crime. Years later, an emotionally stunted adult Gary impersonated an Infinity Guard soldier to impress officer Quinn Ergon, but accidentally destroyed 92 spaceships (plus a Mexican restaurant), and was sentenced to a 5-year prison sentence on the Galaxy One, where, on his final year of imprisonment, would meet and befriend a planet-destroying alien named Mooncake, and the Ventrexian bounty hunter Avocato, which subsequently puts him on a life-changing journey to unlock the mystery of Final Space. Serving as the leader of the Team Squad, he is the main protagonist of Final Space.